A Dart or Valve plug for opening, Closing or Modulation of Abrasive FLUID FLOW, such as Pulp or mineral in Tailings, The Plug is in the shape of an inverted Pyramid of polygonal base and has a polygonal Perimeter SEAT that fits with the Outer surface of the CAP.

摘要

A Dart or Valve plug for opening, Closing or Modulation of Abrasive FLUID FLOW, such as Pulp or mineral in Tailings, The Plug is in the shape of an inverted Pyramid of polygonal base and has a polygonal Perimeter SEAT that fits with the Outer surface of the Cover N.